21464525

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 27956544

約数和(自身を除く): 6492019

約数列:

[1, 5, 25, 41, 43, 205, 215, 487, 1025, 1075, 1763, 2435, 8815, 12175, 19967, 20941, 44075, 99835, 104705, 499175, 523525, 858581, 4292905, 21464525]

約数ペア:

[(1, 21464525), (5, 4292905), (25, 858581), (41, 523525), (43, 499175), (205, 104705), (215, 99835), (487, 44075), (1025, 20941), (1075, 19967), (1763, 12175), (2435, 8815)]